I'm aware. But what does that have to do with Ultron's creation? nothing

don't answer for me. it might have nothing to do with Ultron's creation. or it might have everything to do with it; depending on how and/or if they want to introduce Ultron in the cinematic universe. if they wanted to streamline things, they could (theoretically) have Stark be behind Ultron's creation. there's now precedent for it since Ultron now has ties to Stark within the books and animated series. they've already eliminated Pym and Janet as founding Avengers. Robert Downey jr may be wrapping up his turn as Tony Stark. they might give him the Ultron story as a parting gift of sorts. arrogantly using his own brain patterns to create artificial intelligence sounds exactly like something movie Tony would do. movie stark has all of the human foibles needed to make Ultron a threat. again, i'm not personally an advocate of it. but don't act like it's something they wouldn't consider; simply to save space.